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Finding the Fourth Proportional to 210,304.68, 290,220.18 and 134,853

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Solution

The fourth proportional to 210,304.68, 290,220.18 and 134,853 is: 186,096.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,304.68 : 290,220.18 = 134,853 : x
  2. Step 2: Convert to fraction form
    210,304.68/290,220.18 = 134,853/x
  3. Step 3: Cross multiply
    210,304.68x = 290,220.18 × 134,853
  4. Step 4: Simplify right side
    210,304.68x = 39,137,061,933.54
  5. Step 5: Solve for x
    x = 39,137,061,933.54/210,304.68
  6. Step 6: Final answer
    x = 186,096.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.